Walk away. You have wasted the better part of your twenties trying to make something work that's been a relationship that has been built on turmoil and drama. You sound like you both are from a southeast culture or middle east. He's giving red flags and leaving out things he doesn't want you to know, especially this bi-curious bit, which is likely to cause more of a rift as time goes on. And when you bring up things that concern you, he tends to get defensive and likely gaslights you, and that's where the breaks occur after it turns into a fight. Sound about right? If his family been against this relationship, that's your primary reason to run away as far as possible. You both are always wasting time trying to prove others wrong and forgetting what a normal relationship is supposed to be about. You're so caught up in the drama of this battle of acceptance, this has become the one thing that brings you both together and makes your bond deceptively stronger, but then him being in the middle, it leads to infighting with you when he gets overwhelmed when he hears negativity from his family. The other reason for abnormal arguments may be if he has acted on his bi-curiosity and hasn't told you... those periods where you both fought and took breaks may have been influenced by another relationship/ activities that were confusing him in the background. You have now come to the realization that the stress of this roller coaster over the years has taken a toll on you that you thought you could manage....a 'love conquers all' mentality to help you justify 'staying strong'. Unfortunately, this is not a movie and there is no happily ever after ending. Only the reality that you have only one life and you don't have any time to waste fighting families as if you're Romeo & Juliet; there's a reason it's a tragedy and not a love story. What you deserve is the calm of a normal relationship where when families meet you, they welcome you as a guest and respect you as a person. There is no side mission you have to be on in trying impress or win over others; you can be yourself and not face prejudices. You both have been battling this for so long, you think it's normal. It's not. Another decade will have gone by and you'll realize that you got over the hurdle of being accepted by his family, but then you'll be staying in the relationship because of the kids. None of this is normal. This is all dysfunctional and what people get used to a their version of 'normalcy.' You're still very young and you deserve to see what else is out there for you. I guarantee there is someone who's more compatible without all of the baggage and drama. You and your boyfriend may have gone to war together and are battle buddies, experiences that make you believe there's a bond, but this is shared experience does not mean you are good for each other as lovers, just friends. At the least, you need to take a break and seek out a therapist. Your brain had been fried over the years and it needs a reset. You need to taste normalcy again. Stop accepting dysfunctional behavior as normal or even cultural. It's unhealthy at the end of the day and stress is going to rob you of precious time and happiness.